#!/bin/sh

## INFO
host="$(cat /etc/hostname)"
os='Debian 11'
kernel="$(uname -sr)"
uptime="69 days, 4 hours, 20 minutes"
packages="$(apt list --installed 2>/dev/null | wc -l)"
shell="$(basename "$SHELL")"

## UI DETECTION
if [ -n "${DE}" ]; then
	ui="${DE}"
	uitype='DE'
elif [ -n "${WM}" ]; then
	ui="${WM}"
	uitype='WM'
elif [ -n "${XDG_CURRENT_DESKTOP}" ]; then
	ui="${XDG_CURRENT_DESKTOP}"
	uitype='DE'
elif [ -n "${DESKTOP_SESSION}" ]; then
	ui="${DESKTOP_SESSION}"
	uitype='DE'
elif [ -f "${HOME}/.xinitrc" ]; then
	ui="$(tail -n 1 "${HOME}/.xinitrc" | cut -d ' ' -f 2)"
	uitype='WM'
elif [ -f "${HOME}/.xsession" ]; then
	ui="$(tail -n 1 "${HOME}/.xsession" | cut -d ' ' -f 2)"
	uitype='WM'
else
	ui='unknown'
	uitype='UI'
fi

##hardcode because our .xinitrc doesn't end like exec wm
ui="dwm"

## DEFINE COLORS
# probably don't change these
if [ -x "$(command -v tput)" ]; then
	bold="$(tput bold)"
	black="$(tput setaf 0)"
	red="$(tput setaf 1)"
	green="$(tput setaf 2)"
	yellow="$(tput setaf 3)"
	blue="$(tput setaf 4)"
	magenta="$(tput setaf 5)"
	cyan="$(tput setaf 6)"
	white="$(tput setaf 7)"
	reset="$(tput sgr0)"
fi

# you can change these
lc="${reset}${bold}${white}"        # labels
nc="${reset}${bold}${white}"        # user and hostname
ic="${reset}"                       # info
c0="${reset}${white}"               # first color

## OUTPUT
clear
cat <<EOF
${c0}${nc}${USER}${ic}@${nc}${host}${reset}
------
${c0}${lc}OS:        ${ic}${os}${reset}
${c0}${lc}KERNEL:    ${ic}${kernel}${reset}
${c0}${lc}UPTIME:    ${ic}${uptime}${reset}
${c0}${lc}PACKAGES:  ${ic}${packages}${reset}
${c0}${lc}SHELL:     ${ic}${shell}${reset}
${c0}${lc}${uitype}:        ${ic}${ui}${reset}

EOF